Defending world champion Sebastian Vettel insists the Red Bull team have much more to offer this season as they look to maintain their dominance of Formula 1.

The German, who is 15/8 with bet365 to defend his title successfully once again, had not been overly impressive in the first three races of the new season.
However, he was back to his best at Bahrain last Sunday, winning the race from pole position to storm to the top of the standings.
“We’ve only had four races,” Vettel told the Metro.
“I’m not entirely happy with where we are, but I think there’s great potential in the car.”